WASHINGTON (Reuters) - A Republican attempt to dismantle Obamacare fell apart in the U.S. Senate on Tuesday for the second time in two months in a serious defeat for President Donald Trump's domestic agenda.

WASHINGTON (Reuters) - Students and faculty at Georgetown Law School gathered on Tuesday to protest that U.S. Attorney General Jeff Sessions was delivering an address about the right of free speech on college campuses to an invitation-only audience without giving critics of the Trump administration an opportunity to ask questions.

WASHINGTON (Reuters) - The chairman of the U.S. Securities and Exchange Commission (SEC) told a congressional committee on Tuesday he did not believe his predecessor Mary Jo White knew of a 2016 cyber breach to the regulator's corporate disclosure system, the exact timing of which could not be known "for sure."

(Reuters) - U.S. President Donald Trump ramped up his fight with the National Football League on Tuesday, calling on the league to ban players from kneeling in protest at games while the national anthem is played.

WASHINGTON (Reuters) - Republican political consultant Roger Stone, a longtime ally of President Donald Trump, flatly denied allegations of collusion between the president's associates and Russia during the 2016 U.S. election in a meeting with lawmakers on Tuesday.

(Reuters) - Alabama voters cast ballots on Tuesday for the Republican nominee to fill a U.S. Senate seat in a race that has pitted the party's leaders, including President Donald Trump, against its anti-establishment wing.

WASHINGTON (Reuters) - U.S. President Donald Trump on Tuesday said a forthcoming tax reform plan would cut taxes "tremendously" for the middle class, as Republican conservatives said they could accept big revenue losses in exchange for aggressive tax cuts for businesses.

WASHINGTON (Reuters) - The Trump administration plans to cap the number of refugees admitted to the United States in the coming year at 45,000, two people with knowledge of the decision said on Tuesday, and advocates said this historically low level is insufficient in the face of growing humanitarian crises worldwide.

WASHINGTON (Reuters) - Roger Stone, a longtime ally of President Donald Trump, refused to respond to one line of questioning from members of the U.S. House of Representatives Intelligence Committee on Tuesday and could face a subpoena to return and answer them, the panel's top Democrat said.